There are many times we notice things at Mass that need improvement, and nobody argues that we should jump in there and fix those types of things. For example, one Church I went to had tons of dead flies in the lampshades. When I mentioned this, they said, “Thanks, we’ll let maintenance know.” (No ladder was proffered.)
Another example, for the last couple of weeks, I have noticed the hosts are stale. The priest said “the office will deal with it.” (They didn’t hand me flour.)
So if I were to mention that the choir keeps playing the opening song too fast in some vain attempt to get things hopping, the right response would be, “We’ll get the choir director on it,” not, “Well, why don’t you join the choir?”
Songs in our hymn books are very carefully written so that nothing is above a “d” (nine notes above middle c). Most people cannot sing higher than an “a” or “b”. But then if you transpose the piece down, their low notes will be groveling in the mud. And it won’t be nearly as beautiful at the top end. So really, pieces should not be transposed to accommodate the average person. Rather, the average person should just leave out the high notes and let the choir sing it, presuming the choir can sing.